Question

Convert to cm by using decimals. My question is (3 mm)

Answer 1

1 cm=10 mm
Thus
1 mm=1/10 cm
Therefore, 3 mm =1/10×3=3/10 cm=0.3 cm

Answer 2

45 mm = (45/10) cm =  4.5 cm45 mm = (45/1000) m =  0.045 m45 mm = (45/1000000) km =  0.000045 km

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Praveen Babu Kodru answered this
18 helpful votes in Math, Class XII-Commerce

45 mm = 4.5 cm

45 mm = 0.045 m

45 mm = 0.000045 km